I am unable to start my android emulator in eclipse . I get hit with the following error message always

"Failed to start emulator: Cannot run program "/Users/anandmadhusoodanan/Desktop/Assignments/Spring-2012/Embedded_Systems_Programming/android-sdk-macosx//tools/emulator": error=1, Operation not permitted" where
"/Users/anandmadhusoodanan/Desktop/Assignments/Spring-2012/Embedded_Systems_Programming/android-sdk-macosx" is the path of my sdk.

I have tried re-installing the ADT plug-in, the sdk and even eclipse.
I am using Mac OS.